2025 Caterpillar Demolition Excavators 340 UHD
- Year 2025
- Make Caterpillar
- Model Demolition Excavators
- Engine Model: Cat C9.3B
2025 Caterpillar Demolition Excavators 340 UHD
2025 Caterpillar Demolition Excavators 340 UHD
Demolition Excavator with the Largest Work Tools for 6 to 7 Story WorkThe Cat® 340 UHD provides optimum machine solutions for building demolition up to 8 stories. With its unique coupling system, you can switch between two lengths of Ultra High Demolition fronts and two types of Retrofit booms and sticks with no special tools in 15 minutes. You simply won’t find a better 50-ton class choice for demolition.
Features may include:
HIGH PERFORMANCE- UHD can reach up to 18.6m (60 ft 11 in) of working vertical pin height, using a 3.7 ton (8,157 lbs) tool with 11.7m (38 ft 4 in) horizontal reach.
- Cat active stability monitoring system continuously informs operators of work tool position within the safe working range and warns when approaching the stability limit.
- Hydraulically actuated variable gauge undercarriage provides outstanding stability extended to 4000 mm (13 ft); it retracts to 3000 mm (10 ft) to make transportation easier.
- Demolition cab with standard Operator Protective Guards (OPG) includes front and roof of P5A 10 mm (0.4”) laminated glass.
- Tilt-up 30° for a more productive and comfortable sight line.
- The windshield and roof one-piece parallel wipers with three intermittent settings include washer spray.
- Start the engine with a push button; use a Bluetooth® key fob or the unique Operator ID function.
- Program each joystick button, including power mode, response, and pattern, using Operator ID; the machine will remember what you set each time you go to work.
- Automatic hydraulic oil warmup gets you to work faster in cold temperatures and helps prolong the life of components.
- The latest operator oriented User Interface (UI) has been designed to maximize uptime by allowing operators to easily reorder work tool lists and quickly create new work tool combinations. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.
- Enjoy low maintenance cost due to extended service intervals.
- Check hydraulic system oil and easily drain fuel system water and fuel tank water from ground level.
Engine
Engine Power
Net - ISO 9249: 346 hp | Net - ISO 9249 (DIN): 351 hp (metric) | ISO 14396: 347 hp | SO 14396 (DIN): 352 hp (metric)
Engine
Model: Cat C9.3B
Bore
4 in
Stroke
5 in
Displacement
568 in³
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Operational
Operating Conditions
Maximum Swing Torque: 105000 lbf·ft | Straight Bucket Digging Force - ISO: 47160 lbf | Straight Stick Digging Force - ISO: 37300 lbf | Bent Bucket Digging Force - ISO: 47160 lbf | Bent Stick Digging Force - ISO: 37300 lbf
Operating Speed
Swing: 8 r/min | Swing UHD Fronts: 4.09 r/min
Hydraulics
Hydraulic Flow
Main System - Maximum: 560 l/min (148 gal/min)
Maximum Pressure
Equipment: 5076 psi | Equipment - Lift Mode: 5511 psi | Travel: 5076 psi | Swing: 4264 psi
Dimensions
Dimensions
Tail Swing Radius: 11.6 ft | Counterweight Clearance: 4.6 ft | Maximum Reach at Ground Level: 48.3 ft | Maximum Working Reach at Stick Nose - 1/2: 38.4 ft | Maximum Reach at Stick Nose: 44.4 ft | Straight Maximum Reach at Stick Nose: 34.8 ft | Straight Maximum Reach - Ground Level: 39.9 ft | Bent Maximum Reach - Ground Level: 36.7 ft
Height
Shipping - Top of Cab: 11.1 ft | Cab - With OPG: 11.8 ft | Maximum Pin at Stick Nose: 72.2 ft | Maximum Working Pin at Stick Nose - 1/2: 61 ft | Maximum at Stick Nose in Max Reach Position: 41.5 ft | Straight Maximum Pin at Stick Nose: 39.8 ft | Straight Maximum at Stick Nose in Max Reach Position: 7.6 ft | Straight Maximum/Minimum Loading: 34 ft/15.8 ft | Bent Maximum Cutting: 35.4 ft | Bent Maximum/Minimum Loading: 24.9 ft/10.4 ft
Length
Shipping: 49.8 ft | Machine - without Front, with Counterweight: 23.3 ft | Machine - without Front and Counterweight: 22.8 ft
Ground Clearance
1.7 ft
Gauges
Working - Extended Position: 11.2 ft | Shipping - Retracted Position: 7.8 ft
Track Length
Track: 18.9 ft | Track to Center of Rollers: 15.7 ft
Track Width
Extended/Retracted: 13.1 ft/21.4 ft
Transport Width
10.7 ft
Depth, Maximum
Straight Maximum Digging: 16.1 ft | Bent Maximum Digging: 22.1 ft
Capacities
Fuel Capacity
158.5 gal (US)
Cooling System
10.5 gal (US)
Oil capacity
Engine: 8.5 gal (US)
Features
DEF Tank: 21.1 gal (US) | Swing Drive: 4.8 gal (US) | Final Drive - Each: 2.1 gal (US)
Hydraulic Capacity
System - Including Tank: 145.3 gal (US) | Tank: 42.5 gal (US)
Cargo Capacity
Bucket GD: 2.27 m³ (2.97 yd³)
Weights
Weight, In Running Order
122600 lb
Weight
Machine - Retrofit Configuration: 118600 lb | UHD in Cradle: 18700 lb | Retrofit Boom in Cradle - R3.9 DB Stick:13710 lb | Retrofit Boom in Cradle - R3.2 DB Stick: 13340 lb | Retrofit Boom in Cradle - R2.8 DB Stick: 13120 lb | 2-Piece Retrofit Boom in Cradle - R3.2 DB Stick: 17440 lb | Maximum at Stick Nose: 8160 lb | Straight Maximum at Stick Nose:9260 lb
Features
Features
Air Conditioning:The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg (2.2 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons).